I just received your letter and I just had the opportunity to right back. The most recent earthquakes are occurring in California. They are likely to occur in certain locations.
There is certain ways of determining what parts of the world are most prone. One way would be to locate were earthquakes and volcanoes occur and make charts or graphs.
There is a relationship between earthquakes and volcanoes. One example would be that some earthquakes
and volcanoes occur in the same places.
I think that it is possible for you to know what is causing earthquakes. What is causing earthquakes is that there are plates on the bottom so they move. I hope you understand now how earthquakes and volcanoes happen.